How do you get h-sync and v-sync from c-sync off jamma?

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FusionITR

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What would I need to do to get a v-sync and h-sync signal off the c-sync jamma outputs so I can have a pinout for a HD-15 to hook up to any 15.7 KHz computer monitor?
 
norton9478

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FusionITR said:
What would I need to do to get a v-sync and h-sync signal off the c-sync jamma outputs so I can have a pinout for a HD-15 to hook up to any 15.7 KHz computer monitor?
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with a Sync Splitter IC....

i think it's a LM1881.
 
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FusionITR

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norton9478 said:
My bad, you need a LM1881

http://www.national.com/ds/LM/LM1881.pdf
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It looks like thats not what I'm looking for.

It seems as if that chips strip composite sync out from a composite video signal. What I need is something entirely different (since jamma outputs composite sync natively). I need something that will convert the composite sync signal to both vertical sync and horizontal sync signals.
 
norton9478

norton9478

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FusionITR said:
It looks like thats not what I'm looking for.

It seems as if that chips strip composite sync out from a composite video signal. What I need is something entirely different (since jamma outputs composite sync natively). I need something that will convert the composite sync signal to both vertical sync and horizontal sync signals.
Click to expand...

Yeah, just put in the composite sync instead of composite video.....
 
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FusionITR

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norton9478 said:
Yeah, just put in the composite sync instead of composite video.....
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There is no input for composite sync and no output for horizontal sync... how does this work?
 
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sonofx51

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you should be able to tie the HV together to the C sync.
 
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sonofx51

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yes, tie or solder together the H and V to the C sync, it should work.
 
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